MATHEMATICS HIGH SCHOOL

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What is the value of x?



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Middleschool12K avatar

Answers

Answer 1
Answer: The answer is x = 19

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A dairy farmer accidentally allowed some of his cows to graze in a pasture containing weeds that would contaminate the flavor of the milk from this herd. The farmer estimates that​ there's a a 9 9​% chance of a cow grazing on some of the flavorful weeds. ​(a) Under these​ conditions, what is the probability that none of the 16 16 animals in this herd ate the tasty​ weeds? ​(b) Does the Poisson model give a good estimate of the probability that no animal ate the​ weed?

The measure of each angle of a triangle is a multiple of 30°. What is the probability that the triangle has at least two congruent angles?

Answers

Well, the triangle could have a few possibilities to get the angles. They are:
30-30-120
30-60-90
30-90-60
30-120-30
60-30-90
60-60-60
60-90-30
90-30-60
90-60-30
Thus, there are 9 possible cases. Out of them 3 are good, so the probability is 1/3, or 33%.

Answer:

33%

Step-by-step explanation:

Simplify Expression
3/5b - 2 + 7b - 12 - 2/5b + 14

Answers

Answer:

The answer is 7 1/5 b

Step-by-step explanation:

What are the roots of the quadratic equation 0= 8x^2+14x ?

Answers

8x^2+14x=0
Take 2x as a common factor:
2x(4x+7)=0
Take 2 cases:
2x=0 or 4x+7=0
2x=0       x=0
4x+7=0       4x=-7        x=-7/4

The roots are 0 or -7/4.

Hope this helps :)

The distance between Fort Worth and Dallas is approximately 52 kilometers. There are about 8 kilometers in 5 miles. What is the distance in the number of miles between Fort Worth and Dallas?


The distance between Fort Worth and Dallas is approximately 52 kilometers. There are about 8 kilometers in 5 miles.


What is the distance in the number of miles between Fort Worth and Dallas?

Answers

Step-by-step explanation:

52 km / ( 8 km / 5mi) =  52 *  5 / 8   miles = 32.5 miles

A toddler takes off running down the sidewalk at 270 ft/min. One minute later, a worried mother runs after the child at 580 ft/min. After how many minutes will the mother overtake the toddler?

Answers

we know that in one minute the toddler is 2(270)=540 feet and mother is 580 so less than 1 minute

Debbie needs to fill juice cups for her little brother's birthday party. There are 20 juice cups and each juice cup holds 10 fluid ounces. The juice comes in 1-gallon bottles. How many 1-gallon bottles of juice will Debbie need to purchase? (1 quart = 32 fluid ounces, 1 gallon = 4 quarts)

Answers

she would need to buy at least 2 gallons of juice but she would have a little left over

20 juice cups(each juice cup holds 10 fluid ounces)=20*10 ounces so, you need to purchase: 200/128=1.562 gallons= 2 bottles of juice each containing one gallons

Answer: 2 bottles of juice for her little brothers birthday party
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After t sec. a ball tossed in the air from ground level reaches a height of h feet given by the equation: h=144t-16t^2a. what is the height of the ball after 3 sec.? 288 ft.b. what is the maximum height the ball will reachc. find the number of seconds the ball is in the air when it reaches 224 ft in heightd. after how many sec. will the ball hit the ground before rebound?I am not sure which equation to use and why for the b,c,and d. If I find the ft/sec. that the ball travels (96), and set the quadratic equation to -16t^2+144t+288 or 16t^2-144t-288=0, is this correct? Or should I use the quad formula and why.